Introductions

Celumbra, the Night's Dichotomy is a new craft legendary gear in 7.2.
Requires lvl101 and can be traded in game. Because the map of the
broken coast is very small, so there is the big chance for the fight
between alliance and horde. This is a good use for this kind of craft
legendary gear.

Celumbra, the Night's Dichotomy is made by the
tailoring. The recipe can be bought and learned at the professional
trainer. It needs tailoring 800. You need prepare 3 legendary items and some blood of Sargeras. Nethershard Essence can be exchanged by Nethershard or bought at an auction house with WoW Gold. But the Bolt of Shadowcloth and Bolt of Starweaveneed need to do some quests. You can get the quest from the Broken Shore.

In order to start the quest, you'll need to have the Nether Disruptor building active in the Broken Shore.

The quest giver is Eliezer Hammerbeard, located in Deliverance Point in Broken Shore.

The first quest is called "Fashion History and a Philosophy of Style", just listen to Eliezer´s story.

Completing this quest will give you a new one, "The Legend of the Threads". Just bring him a scroll from Suramar.

After this will give you 4 new quests:

The Thread of Shadow : Defeat Advisor Vandros in The Arcway for Shadow Thread from Vandros' Shadoweave Robes.

The Thread of Starlight : Defeat Advisor Melandrus in Court of Stars for Starlight Thread from Melandrus' Star-Touched Bracers.

The Thread of Souls : Defeat Grand Magisrix Elisande in the Nighthold Raid for Soul Thread from Suramari Soul-Wraps.

The fourth quest is to gather 100 Ancient Imbued Silkweave, this item drops from humanoids in Broken Shore.

If you have all of these, you can craft Celumbra, the Night's Dichotomy. You can choose to use by yourself or sell it at AH.

Are you worried about the first legendary gear? Collect WOW gold to buy one at AH, this is also a good choice.